Evidence map›Paper›PMID 27288487›Full record

ArticleAmerican journal of physiology. Lung cellular and molecular physiology2016

17β-Estradiol mediates superior adaptation of right ventricular function to acute strenuous exercise in female rats with severe pulmonary hypertension.

Tim Lahm, Andrea L Frump, Marjorie E Albrecht, Amanda J Fisher, Todd G Cook, Thomas J Jones, Bakhtiyor Yakubov, Jordan Whitson, Robyn K Fuchs, Aiping Liu and 2 more

Open access · bronzeAbstract read
In one paragraph

Article in American journal of physiology. Lung cellular and molecular physiology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 57 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
57citing papers in PubMed, 1 pooled it
7.2field-weighted citation impact, top 3% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

57 citing papers in PubMed, 1 synthesis or guideline pooled it, 82 citations in OpenAlex.

  1. Guideline
  2. Article
  3. Article
  4. Mechanisms Underlying Altitude-Induced and Group 3 Pulmonary Hypertension.International journal of molecular sciences · 2026
    Review
  5. Current Evidence on the Potential Role of EndothelialReviews in cardiovascular medicine · 2026
    Review
  6. Review
  7. Article
  8. Article
  9. Review
  10. Review
  11. Article
  12. Review
  13. Review
  14. Sex-dependent remodeling of right ventricular function in a rat model of pulmonary arterial hypertension.American journal of physiology. Heart and circulatory physiology · 2024
    Article
  15. Effect of estrogen receptor α on cardiopulmonary adaptation to chronic developmental hypoxia in a rat model.American journal of physiology. Lung cellular and molecular physiology · 2024
    Article
  16. Cell Death in Pulmonary Arterial Hypertension.International journal of medical sciences · 2024
    Review
  17. Article
  18. Sex differences in right ventricular adaptation to pressure overload in a rat model.Journal of applied physiology (Bethesda, Md. : 1985) · 2022
    Article
  19. Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

12 authors at 4 institutions in 1 country.

Tim LahmDivision of Pulmonary, Allergy, Critical Care, Occupational and Sleep Medicine, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana; Department of Cellular and Integrative Physiology, Indiana University School of Medicine, Indianapolis, Indiana; Richard L. Roudebush Veterans Affairs Medical Center, Indianapolis, Indiana; tlahm@iu.edu.
Andrea L FrumpDivision of Pulmonary, Allergy, Critical Care, Occupational and Sleep Medicine, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana;
Marjorie E AlbrechtDivision of Pulmonary, Allergy, Critical Care, Occupational and Sleep Medicine, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana;
Amanda J FisherDepartment of Anesthesiology, Indiana University School of Medicine, Indianapolis, Indiana;
Todd G CookIndiana Center for Vascular Biology and Medicine, Indianapolis, Indiana;
Thomas J JonesDivision of Pulmonary, Allergy, Critical Care, Occupational and Sleep Medicine, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana;
Bakhtiyor YakubovDivision of Pulmonary, Allergy, Critical Care, Occupational and Sleep Medicine, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana;
Jordan WhitsonDivision of Pulmonary, Allergy, Critical Care, Occupational and Sleep Medicine, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana;
Robyn K FuchsDepartment of Physical Therapy, Indiana University School of Health and Rehabilitation Sciences, Indianapolis, Indiana; and.
Aiping LiuDepartment of Biomedical Engineering, University of Wisconsin-Madison College of Engineering, Madison, Wisconsin.
Naomi C CheslerDepartment of Biomedical Engineering, University of Wisconsin-Madison College of Engineering, Madison, Wisconsin.
M Beth BrownDepartment of Physical Therapy, Indiana University School of Health and Rehabilitation Sciences, Indianapolis, Indiana; and.
Indiana University – Purdue University Indianapolis · USIndiana University School of MedicineMadison Area Technical College · USCenter for Vascular Biology Research · US

Funding

Indiana Clinical and Translational Sciences InstituteUL1TR001108 · NCATS · INDIANA UNIVERSITY INDIANAPOLIS · PI DENNE, SCOTT C., SHEKHAR, ANANTHA · 2013 to 2017
$23.3M
Vascular collagen accumulation & mechanical mechanisms in pulmonary hypertensionR01HL086939 · NHLBI · UNIVERSITY OF WISCONSIN-MADISON · PI CHESLER, NAOMI C · 2007 to 2016
$3.6M
Indiana Clinical and Translational Sciences InstituteTL1TR001107 · NCATS · INDIANA UNIVERSITY INDIANAPOLIS · PI DENNE, SCOTT C., SHEKHAR, ANANTHA · 2013 to 2017
$2.0M
Hypoxia-mediated protective estrogen receptor signaling in pulmonary hypertensionI01BX002042 · VA · VA EASTERN COLORADO HEALTH CARE SYSTEM · PI Tim Lahm · 2014 to 2026
–
BLRD VA I01 BX002042NHLBI NIH HHS R01 HL086939
6 · The paper itself

Abstract

17β-Estradiol (E2) exerts protective effects on right ventricular (RV) function in pulmonary arterial hypertension (PAH). Since acute exercise-induced increases in afterload may lead to RV dysfunction in PAH, we sought to determine whether E2 allows for superior RV adaptation after an acute exercise challenge. We studied echocardiographic, hemodynamic, structural, and biochemical markers of RV function in male and female rats with sugen/hypoxia (SuHx)-induced pulmonary hypertension, as well as in ovariectomized (OVX) SuHx females, with or without concomitant E2 repletion (75 μg·kg(-1)·day(-1)) immediately after 45 min of treadmill running at 75% of individually determined maximal aerobic capacity (75% aerobic capacity reserve). Compared with males, intact female rats exhibited higher stroke volume and cardiac indexes, a strong trend for better RV compliance, and less pronounced increases in indexed total pulmonary resistance. OVX abrogated favorable RV adaptations, whereas E2 repletion after OVX markedly improved RV function. E2's effects on pulmonary vascular remodeling were complex and less robust than its RV effects. Postexercise hemodynamics in females with endogenous or exogenous E2 were similar to hemodynamics in nonexercised controls, whereas OVX rats exhibited more severely altered postexercise hemodynamics. E2 mediated inhibitory effects on RV fibrosis and attenuated increases in RV collagen I/III ratio. Proapoptotic signaling, endothelial nitric oxide synthase phosphorylation, and autophagic flux markers were affected by E2 depletion and/or repletion. Markers of impaired autophagic flux correlated with endpoints of RV structure and function. Endogenous and exogenous E2 exerts protective effects on RV function measured immediately after an acute exercise challenge. Harnessing E2's mechanisms may lead to novel RV-directed therapies.

Indexed as

Adaptation, PhysiologicalAnimalsArterial PressureAutophagyEstradiolFemaleHypertension, PulmonaryHypertrophy, Right VentricularMaleNitric Oxide Synthase Type IIIOxygen ConsumptionPhysical ExertionPulmonary ArteryRats, Sprague-DawleySex CharacteristicsStroke VolumeEstradiolNitric Oxide Synthase Type IIINos3 protein, ratapoptosisautophagyendothelial nitric oxide synthasefibrosissugen/hypoxia

Identifiers

PMID27288487
PMCPMC5142461
OpenAlexW2417409779

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.